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不同施肥下冬小麦生长过程中土壤矿质氮变化及其与 冬小麦叶片SPAD值的关系
张燕1; 王百群1,2; 何瑞清1
2016
Source Publication水土保持研究
Volume23Issue:6Pages:78-82
Abstract

通过调查分析,研究了土长期施肥条件下土壤中矿质氮含量变化及其与地上冬小麦叶片SPAD值。结果表
明:(1)整个冬小麦生长期不同土层硝态氮和铵态氮的变化趋势不一致,硝态氮含量是先下降后上升的变化,而铵态
氮含量呈一直上升的变化趋势。在没有施过氮肥的处理中,0—20cm,20—40cm土层中土壤硝态氮、铵态氮含量显
著低于施用氮肥的处理;(2)冬小麦生长时期,各个处理叶片SPAD值各异,但都是先升高后下降的变化,无氮肥施用
的叶片SPAD值低于施氮肥的处理;(3)冬小麦各个生长时期叶片SPAD值与土壤不同层次(0—20cm,20—40cm)
硝态氮含量呈正相关关系,而与铵态氮含量相关性不显著,这表明小麦是对硝态氮较为敏感的作物。本试验结果可
以为进一步合理调控氮肥施用、明确施氮对小麦产量和品质的影响提供一定的基础依据。

Other Abstract

Through the investigation and analysis,the soil and plant analyzer development(SPAD)values of
winter wheat leaves and mineral nitrogen contents of Lou soil under the long-term fertilization were characterized.
The results showed that:(1)the changes of nitrate nitrogen and ammonium nitrogen contents in
different soil layers were not consistent during the winter wheat grwoth period.The contents of nitrate nitrogen
were decreased first and then increased,while the content of ammonium nitrogen has been rising,the
contents of nitrate nitrogen and ammonium nitrogen of treatment with no nitrogen fertilizer were significantly
lower than those of treatments with nitrogen fertilizer in the different soil layers(0—20cm,20—40cm);
(2)during the growth period of winter wheat,the SPAD values of all treatments were different,but all of
which first increased and then decreased.The SPAD values of leaves under the treatment with no nitrogen
fertilizer were lower than those of the treatments with nitrogen fertilizer application;(3)during winter
wheat growth period,SPAD values of leaves and nitrate nitrogen contents were significantly positively correlated
in different soil layers(0—20cm,20—40cm),while their correlation with the content of ammonium
nitrogen was not significant,indicating that wheat is sensitive to nitrate nitrogen to some extent.The results
could provide the reference for manipulation of the nitrogen fertilizer application and understanding the effect
of nitrogen fertilization on the yield and quality of winter wheat.

Keyword矿质氮 冬小麦 Spad值
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8719
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学资源环境学院
2.中国科学院 水利部水土保持研究所土壤侵蚀与旱地农业国家重点实验室
Recommended Citation
GB/T 7714
张燕,王百群,何瑞清. 不同施肥下冬小麦生长过程中土壤矿质氮变化及其与 冬小麦叶片SPAD值的关系[J]. 水土保持研究,2016,23(6):78-82.
APA 张燕,王百群,&何瑞清.(2016).不同施肥下冬小麦生长过程中土壤矿质氮变化及其与 冬小麦叶片SPAD值的关系.水土保持研究,23(6),78-82.
MLA 张燕,et al."不同施肥下冬小麦生长过程中土壤矿质氮变化及其与 冬小麦叶片SPAD值的关系".水土保持研究 23.6(2016):78-82.
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